Sensing cable with parallel spiral transmission line structure for distributed sensing and measuring of rock-soil mass deformation
US9618644B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2012 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Jan 13, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/082
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This present disclosure provides a sensing cable of parallel spiral transmission line structure for distributed sensing and measuring of rock-soil mass deformation. A circular cross-section of a silicone strip is tightly wounded by two mutually-insulated wires. The two mutually-insulated wires form the spiral cable. The two mutually-insulated wires are wrapped around and covered by a silicone shroud. They constitute a sensing cable. A termination matching impedance is connected to one end of each of the two mutually-insulated wires. A time domain reflectometry measurement instrument is connected to the other end of the two mutually-insulated wires. The present disclosure implements a distributed positioning and measurement of rock-soil mass deformation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.